121964836 has 24 divisors (see below), whose sum is σ = 252342720. Its totient is φ = 50467872.

The previous prime is 121964833. The next prime is 121964863. The reversal of 121964836 is 638469121.

It is not an unprimeable number, because it can be changed into a prime (121964833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74290 + ... + 75913.

It is an arithmetic number, because the mean of its divisors is an integer number (10514280).

Almost surely, 2^121964836 is an apocalyptic number.

It is an amenable number.

121964836 is an abundant number, since it is smaller than the sum of its proper divisors (130377884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121964836 is a wasteful number, since it uses less digits than its factorization.

121964836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150243 (or 150241 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 121964836 is about 11043.7691029829. The cubic root of 121964836 is about 495.9199109761.

The spelling of 121964836 in words is "one hundred twenty-one million, nine hundred sixty-four thousand, eight hundred thirty-six".